package demo;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: wuqingyu
 * Date: 2023-09-10
 * Time: 17:31
 */
public class Test {
    public static void main(String[] args) {
        byte a = (byte)0b10000000;
        System.out.println(a);
    }
    public static void main1(String[] args) {
        MyArrayList myArrayList = new MyArrayList();
        myArrayList.add(1);
        myArrayList.add(2);
        myArrayList.add(3);
        myArrayList.add(4);
        myArrayList.display();
        myArrayList.addIndex(0,888888);
        myArrayList.display();
    }

}
